Dual switch multimode array antenna
US4359742A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1980 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Dec 23, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dual switch multimode array antenna capable of being switched between two modes through the use of two waveguide switches and a pair of phase shifters. The first mode produces a pencil beam with a monopulse capability and the two switches divide the transmit power equally between the four quadrants. A monopulse capability exists both in azimuth and elevation in this first mode. With the switches and phase shifters transitioned to the second position, illuminated power is directed to the two quadrants and the upper half of the antenna only. This produces the well known cosec.sup.2 .theta. cos.theta. beam in elevation. An azimuth monopulse capability is available in this mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.